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3 years ago

5

Harper wrote the expression 15-6+7 to represent "15 minus the sum of 6 and 7". Evaluate 15 - 6 + 7 and then exposing why Harper'

s expression is incorrect

1 answer:

ra1l [238]3 years ago

8 0

15-6= 9 9+7=16
It should be written as 6+7-15

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2 years ago

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The lengths of the sides of a triangle are 15 cm, 20 cm, 30 cm. What are the lengths of the sides of a similar triangle that has

Alexxandr [17]

<h3>Answer:</h3>

6 cm, 8 cm, 12 cm

<h3>Step-by-step explanation:</h3>

The perimeter of the reference triangle is ...

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Then the similar triangle has a scale factor of ...

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Multiplying the side lengths of the reference triangle by 2/5, we get ...

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